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http://dx.doi.org/10.4014/mbl.1501.01001

Safety Assessment of Coagulase-Negative Staphylococci from Jeotgal, a Korean High-Salt-Fermented Seafood  

Jeong, Do-Won (Department of Food Science and Biotechnology, Kyonggi University)
Lee, Jong-Hoon (Department of Food Science and Biotechnology, Kyonggi University)
Publication Information
Microbiology and Biotechnology Letters / v.43, no.1, 2015 , pp. 84-90 More about this Journal
Abstract
Seventeen ampicillin-sensitive coagulase-negative staphylococci (CNS) isolates identified in jeotgal were subjected to assessments for antibiotic susceptibility and safety hazards. Fifteen of the 17 CNS strains exhibited phenotypic resistances to at least one antibiotic, and their prevailing resistance was to penicillin G. The dfrA gene for trimethoprim and tetK for tetracycline were amplified by PCR from the two strains, respectively. α-Hemolytic activity was not detected from the 17 strains, while five strains presented δ-hemolytic activity. Among the five strains, two strains exhibited β-hemolytic activity. Biofilm was formed from twelve strains. All of the tested phenotypic characteristics were expressed in a strain-specific manner.
Keywords
Jeotgal; coagulase-negative Staphylococcus; safety assessment; salt tolerance; antibiotic resistance; hemolysis; biofilm formation;
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